The protein encoded by this gene is a member of a family of proteins that inhibits apoptosis by binding to tumor necrosis factor receptor-associated factors TRAF1 and TRAF2, probably by interfering with activation of ICE-like proteases. This encoded protein inhibits apoptosis induced by serum deprivation and menadione, a potent inducer of free radicals. Alternatively spliced transcript variants encoding different isoforms have been found for this gene. [provided by RefSeq, Jan 2012],API1,HIAP2,Hiap-2,MIHB,RNF48,c-IAP1,cIAP1,BIRC2,Apoptosis,Apoptosis_Caspases,Apoptosis_Death receptors & ligands,Apoptosis_Inhibition of Apoptosis,Cancer,Cell Biology & Developmental Biology,Death Receptor Signaling Pathway,Endocrine & Metabolism,Immunology & Inflammation,Invasion and Metastasis,Ubiquitin,Ubiquitin_Ubiquitin-Proteasome Signaling Pathway,BIRC2